# CVE-2026-61564: AVideo-Encoder: unauthenticated installer PHP code injection


- **Severity:** Critical 10.0 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Fix available:** No
- **Published:** 28 Oct 2026
- **Updated:** 28 Oct 2026
- **Also known as:** GHSA-xrj3-cqm8-r992

## What is CVE-2026-61564?

CVE-2026-61564 is a critical vulnerability in WWBN AVideo-Encoder, published on 28 Oct 2026. 

### Official description

AVideo is a video-sharing Platform. Prior to 8.1.0, the unauthenticated installer endpoint `install/checkConfiguration.php` assembles `videos/configuration.php` by interpolating request parameters, including `webSiteRootURL`, into single-quoted PHP string literals without escaping. An attacker can terminate a literal and inject PHP that executes as the web-server user when the generated, directly requestable file is loaded. Exploitation requires `videos/configuration.php` to be absent, as on every fresh deployment or after the file is removed or moved; an existing file blocks this endpoint. The supplied `systemRootPath` must contain index.php and a connection using `databaseHost`, `databaseUser`, and `databasePass` must succeed, but the attacker can point those parameters to their own database server and needs no target credentials. The write location is also derived from `systemRootPath` without a base-directory constraint. This permits arbitrary command execution, reading and overwriting files owned by the web-server user, persistent PHP code, and control over stored database connection settings. The endpoint additionally interpolates request values into streamer and configuration INSERT statements, creating a secondary SQL-injection sink. This issue is fixed in version 8.1.0.

Weakness: CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2026-61564?


## How do I fix CVE-2026-61564?

No fix has been published for CVE-2026-61564 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-61564 being exploited?

There is no known exploitation of CVE-2026-61564 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-61564 and fix it if it is affected.

What it is: CVE-2026-61564 is a critical vulnerability in WWBN AVideo-Encoder, published on 28 Oct 2026. 
Exploitation: There is no known exploitation of CVE-2026-61564 in the wild and no public exploit code.

Affected product: WWBN AVideo-Encoder. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-61564/ (Markdown: https://insights.sbomify.com/CVE-2026-61564/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-61564
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-61564
- OSV: https://osv.dev/vulnerability/CVE-2026-61564

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-61564/
Summaries are generated and may contain mistakes; the official description above is the record.